scholarly journals Techno-Economic Evaluation and Comparative Analysis of the CO2 Separation Processes Using Different Piperazine-Mixed Amine Absorbents

2019 ◽  
Vol 52 (7) ◽  
pp. 625-637 ◽  
Author(s):  
Sunghoon Kim ◽  
Minsoo Kim ◽  
Jiyong Kim
Keyword(s):  
Economic Evaluation ◽  
Comparative Analysis ◽  
Separation Processes

scholarly journals Dependency Analysis Between Various Profit Measures and Corporate Total Assets for Visegrad Group’s Business Entities

Organizacija ◽  
2020 ◽  
Vol 53 (1) ◽  
pp. 80-90 ◽  
Author(s):  
Lucia Svabova ◽  
Katarina Valaskova ◽  
Pavol Durana ◽  
Tomas Kliestik
Keyword(s):  
Economic Evaluation ◽  
Comparative Analysis ◽  
Correlation Analysis ◽  
Earnings Management ◽  
Descriptive Statistics ◽  
Management Model ◽  
Dependency Analysis ◽  
The Real ◽  
Business Data ◽  
Business Entities

AbstractBackground and Purpose: Models of identifying and predicting earnings management in companies by using accruals are in general based on the dependence between total assets of companies and various profit measures. In this paper, we focused on an initial dependency analysis between these business indicators in the Visegrad group’s business entities. We explore the mentioned relationships, verify, and quantify the strength of the dependencies between earnings levels of companies (in terms of economic evaluation of the return on business capital in absolute terms) and the value of their total assets (i.e. business capital tied in the assets without its further classification and analysis).Methodology: We use descriptive statistics as well as a correlation analysis based on the real business data on almost 300 thousand companies in the V4 countries from the Amadeus database, covering the period from 2013 to 2017. Finally, we use a comparative analysis to identify disproportion among the results that were found out for each of the analysed countries.Results: The analysis showed that Slovak companies have the average values of profit measures and total assets comparable to Hungarian companies. Czech and Polish companies have several times higher average values of profit measures and also of total assets than Slovak and Hungarian companies. The analysis of the development of the profit measures and the total assets of the companies over the years showed significant differences across the four countries during the period covered by this study.Conclusion: The analysis of relationships between total assets of the companies and their profit measures showed that the strength of these dependencies among countries is very similar, and over the years, these results did not change. The results of this study can be further used in the creation of the earnings management model in enterprises, both in Slovakia and in other V4 countries.

COMPARATIVE ANALYSIS OF ECONOMIC RESULTS OF MAIZE CULTIVATED FOR DRY AND WET GRAIN

2017 ◽  
Vol XIX (1) ◽  
pp. 32-37 ◽  
Author(s):  
Magdalena Czułowska
Keyword(s):  
Economic Evaluation ◽  
Comparative Analysis ◽  
Economic Performance ◽  
Gross Margin ◽  
Survey Sample ◽  
Agricultural Regions

The aim of the study was to evaluate the profitability of maize cultivated for dry and wet grain. Results were presented as groups due to location in the agricultural regions of Poland and on average for whole survey sample. For economic evaluation of the efficiency of production indicator of direct profitability was used. Studies showed that on average in the survey sample for both the 2012 and 2015 years the higher value of gross margin without subsidies obtained on farms cultivating maize for grain dry. But the group of farms growing maize for wet grain was characterized by higher level of direct profitability. The results of gross margin calculation also showed differences in economic performance of farms cultivated maize in selected agricultural regions of Poland. Best results from maize cultivated for dry grain were obtained by farmers from the region Pomorze i Mazury and for maize cultivated for wet grain from Małopolska i Pogórze.

A comparative analysis of different paperless picking systems

2015 ◽  
Vol 115 (3) ◽  
pp. 483-503 ◽  
Author(s):  
Daria Battini ◽  
Martina Calzavara ◽  
Alessandro Persona ◽  
Fabio Sgarbossa
Keyword(s):  
Economic Evaluation ◽  
Comparative Analysis ◽  
Cost Function ◽  
Design Methodology ◽  
Rfid Tags ◽  
Content Type ◽  
Low Level ◽  
Recent Trends ◽  
Picking Systems ◽  
Application Fields

Purpose – Warehouse picking is often referred to as the most labour-intensive, expensive and time consuming operation in manual warehouses. These factors are becoming even more crucial due to recent trends in manufacturing and warehousing requiring the processing of orders that are always smaller and needed in a shorter time. For this reason, in recent years more efficient and better performing systems have been developed, employing various technological solutions that can support pickers during their work. The purpose of this paper is to introduce a comparison of five paperless picking systems (i.e. barcodes handheld, RFID tags handheld, voice picking, traditional pick-to-light, RFID pick-to-light). Design/methodology/approach – Warehouse picking is often referred to as the most labour-intensive, expensive and time consuming operation in manual warehouses. These factors are becoming even more crucial due to recent trends in manufacturing and warehousing requiring the processing of orders that are always smaller and needed in a shorter time. For this reason, in recent years more efficient and better performing systems have been developed, employing various technological solutions that can support pickers during their work. The present paper introduces a comparison of five paperless picking systems (i.e. barcodes handheld, RFID tags handheld, voice picking, traditional pick-to-light, RFID pick-to-light. Findings – The proposed approach contributes to the understanding of the performance of different technologies in different application fields; some solutions are more suitable for a low-level warehouse, others bring greater benefits in the case of picking from multilevel shelving. Originality/value – The study concerns an issue that until now has received very little attention in the literature. It compares some traditional solutions with some innovative ones by an economic evaluation. The presented hourly cost function also takes into account the different errors arising and their probability of occurrence.

scholarly journals MODELING OF POTATO MILL SEPARATION PROCESSES IN A DRUM SEPARATOR

2020 ◽  
pp. 27-41
Author(s):  
Sergiy Hrushetskiy ◽  
Vitaliy Yaropud
Keyword(s):  
Comparative Analysis ◽  
Bottom Layer ◽  
Labor Costs ◽  
Separation Processes ◽  
Technological Processes ◽  
Soil Fraction ◽  
Harvesting Technique ◽  
Complex Mechanization ◽  
Working Bodies ◽  
Pile Model

In order to successfully enter Ukraine into the western markets, it is necessary to ensure the competitiveness of its products, which is achieved through the complex mechanization of technological processes, reduction of labor costs, increase in yield and quality of the products obtained. The most common method of mechanized harvesting of potatoes is the erosion of the tuber layer with its subsequent destruction and the separation of tubers from heap, which contains vegetable impurities, soil tubers and stones. The most difficult is the separation from the tubers of solid soil clumps and stones. Attempts have been made to overcome this problem by placing potatoes on well-sown sandy soils with the help of special agrotechnical techniques that reduce, to some extent, the number of tubers. However, such measures are local, not sufficiently reliable and significantly complicate technology. About 25% of the area occupied by potatoes is heavily clogged with stones, the size of which is close to the size of tubers, and about 40% of the planted potatoes are placed on soils prone to significant lumps. Accordingly, the purpose of the study was to conduct a comparative analysis of technologies and machines for potato harvesting, to develop a model of the process of separation of potato pile in a drum separator. The researches were carried out by technological and structural analysis of technologies and machines for potato harvesting. During the research, the methods of comparison and mathematical modeling of technological processes were used. The information base of the research was the works of Ukrainian and foreign scientists on technologies and machines for potato harvesting. On the basis of the comparative analysis of technologies and machines for potato harvesting, the main processes affecting the agrotechnical indices of the harvesting technique have been identified, a model of the process of separation of potato pile in a drum separator has been developed, which includes the following basic processes: model of sifting of a through fraction of soil from the top layer of pile; heap mixing model; model of destruction of soil lumps on the separator; model kinematic analysis of potato pile in a drum separator; model of sifting of the passable soil fraction from the bottom layer of the pile; model of damage to tubers and other structural and kinematic parameters of the working bodies of the drum separator.

scholarly journals ANÁLISE COMPARATIVA DA VIABILIDADE ECONÔMICA DE PLANTIOS DE Pinus taeda E Eucalyptus dunnii NA REGIÃO CENTRO-SUL DO PARANÁ

FLORESTA ◽  
2010 ◽  
Vol 40 (3) ◽  
Author(s):  
Vinicius Vitale ◽  
Gabriel De Magalhães Miranda
Keyword(s):  
Economic Evaluation ◽  
Comparative Analysis ◽  
Pinus Taeda ◽  
Net Present Value ◽  
Evaluation Criteria ◽  
Economic Viability ◽  
Cost Rate ◽  
Eucalyptus Dunnii ◽  
The Interest Rate ◽  
Benefit Cost

O presente trabalho teve por objetivo fazer uma análise comparativa de viabilidade econômica de projetos florestais com Pinus taeda e Eucalyptus dunnii localizados no município de Prudentópolis, PR. Na análise econômica foram utilizados os critérios do Valor Presente Líquido (VPL), Razão Benefício Custo (B/C), Taxa Interna de Retorno (TIR) e Valor Periódico Equivalente (VPE). A taxa de juros usada foi de 6,75% ao ano. Para o projeto de Pinus taeda os dados de custos e receitas corrigidos totalizaram R$ 4.344,71/ha e R$36.143,99/ha, respectivamente. Os valores calculados dos critérios de avaliação econômica foram um VPL de R$31.799,28/ha; Razão Beneficio/Custo de 8,32, TIR de 27.23% e VPE de R$ 3.200,87/ha/ano. Para o povoamento de Eucalyptus dunnii, a correção dos valores para o momento zero totalizaram R$ 5.767,75/ha, de custos e R$43.842,46/ha de receitas. Os valores calculados dos critérios de avaliação econômica foram um VPL de R$ 38.074,71/ha; Razão Beneficio/Custo de 7,60; TIR de 35,83% e um VPE de R$ 3.832,55/ha/ano. Para os dois projetos foi realizada análise de sensibilidade do VPL. Os resultados mostraram que ambos os projetos são economicamente viáveis.Palavras-chave: Análise comparativa; viabilidade econômica; custos; receitas. AbstractComparative analysis of the economic viability of Pinus taeda and Eucalyptus dunnii plantations in the south-center region of Parana State, Brazil. The objective of this research was to carry out a comparative analysis of economic viability of afforestation projects with Pinus taeda and Eucalyptus dunnii located in Prudentópolis County, State of Paraná, Brazil. In the economic analysis the criteria of Net Present Value (NPV), Benefit Cost rate (B/C), Internal Return Rate (IRR) and Periodic Equivalent Value (PEV) were used. The interest rate used was of 6.75% per the year. For the Pinus taeda plantations the data of rectified costs and income totalized R$ 4.344,71/ha and R$ 36.143,99/ha, respectively. The calculated values of the of economic evaluation criteria presented a NPV of R$ 31,799.28/ha, a Benefit Cost rate of 8,32, an IRR of 27.23% and a PEV of R$ 3.200,87/ha. For the Eucalyptus dunnii plantations the rectified values totalized R$5.767,75 and R$43.842,46/ha for the costs and income, respectively. The calculated values of the economic evaluation criteria showed a NPV of R$38.074,71/ha, a Benefit Cost rate of 7.60, an IRR of 35,83%, and a PEV of R$3.832,55/ha. A sensitivity analysis of the NPV for the two plantations was carried out. The results showed that both afforestation projects are economically viable.Keywords: Comparative analysis; economic viability; costs; income.

scholarly journals 【Original Contribution】Design and Economic Evaluation of the Separation Processes using Inorganic Membrane Technology

MEMBRANE ◽  
2019 ◽  
Vol 44 (4) ◽  
pp. 163-168
Author(s):  
Kei Takane ◽  
Kenta Suzuki ◽  
Keigo Matsuda ◽  
Takehiro Yamaki ◽  
Akira Endo
Keyword(s):  
Economic Evaluation ◽  
Membrane Technology ◽  
Inorganic Membrane ◽  
Separation Processes ◽  
Original Contribution
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